Albert schmitz



(No Model.)

A. S'OHMITZ.

I AIR TIGHT CAN AND COVER THEREFOR;

No. 505,853 Patented Oct. 3, 1893.

j l A ll W B I B UNITED STATES PATENT ()FFICE.

ALBERT SCHMITZ, OF ELBERFELD, GERMANY.

AIR-TIGHT CAN AND COVER THEREFOR.

SPECIFICATION forming part of Letters Patent No. 505,853, dated October 3, 1893.

Application filed March 28, 1893. Serial No. 468,080- (No model.) Patented in Belgium August 10, 1892. No. 76,854. and in England October 1I 1892,1io- 17,539-

.To all whom itmay concern:

Be it known that I, ALBERT SOHMITZ, a subject of the King of Prussia, and a resident of Wiesenstrasse, Elberfeld, in the Kingdom of Prussia and German Empire, have invented a certain new and useful Improvement in Air Tight Cans and Covers Therefor, (for which I have obtained patents in Great Britain, No. 17,539, dated October 1, 1892, and in Belgium, No. 76,354, dated August 10, 1892,) of which .the following is a specification.

The improvement in air tight cans or canisters and the covers therefor, described herein with reference to the accompanying drawings, is intended to so adapt the various parts that they may be readily fitted together by handpressure and be air tight. Without employing soldering, or other special means, covers may be hermetically fitted to corresponding cans and easily removed therefrom, by hand, without material injury'to any of the parts, and without aspecially constructed tool. i

In the drawings Figure 1 is a sectional elevation of the cover A of a circular tin can or canister. Fig. 2 is a section of a circular tin can or canister. the cover put on. Fig. 4 is an enlarged section of the two cover-flanges. Fig. 5is an enlarged section of the'can-flange. Fig. 6 is an enlarged section of the can and fitting cover.

The cover A forms a disk, having an upturned beveled flange and an outwardly convex flange one over the other, with small fluting between them; the upturned beveled flange having a horizontal projecting rim. The two flanges of the cover, with the intermediate fiuting are adapted to receive an india-rubber ringA of the sectional form shown in the enlarged detail of Fig. 4. The curve of the lower flange is intended to give a slight spring to the cover when it is placed on the can B.

Fig. 3 is a section of the can, i

The mouth of the can B is formed with a side flange B, as shown in the section Fig. 2'

and in the enlarged detail section Fig. 5. In diameter, the can-flange is slightly larger than the corresponding part of the cover and just sufficient to admit the latter. The angle of the bevel B is almost. parallel with that of the corresponding bevel of A, but with an allowance for compressing the ring A between, and the foot of the bevel B slightly recedes inside the can B, its Wall so forming the inside flange. The cover is put on by hand and pressed so that the rubber ring A fits well on the bevel B all round its circumference, so accomplishing the air tight joint (as shown in the section Fig. 3) by the spring action mentioned. The cover can be pulled off by hand without difflculty by slightly separating the horizontal rims of the can and the cover.

The cans may be used for, other articles as desired.

Having now described my invention, what I claim as new, and desire to secure by Letters Patent, is-

A can with an outwardly projecting horizontal flange atits top,a continuousinwardly projecting shoulder near the top, in combination with a cover having a countersunk central portion, an outwardly projecting horizontal flange, the vertical portion of the countersink havi'ngacontinuous inwardly projecting groove carrying a rubber washer, for enpreserves and gagement with the shoulder of the can, sub- ,7

stantially as shown and described.

In witness whereof I have hereuntosigned my name in the presence of two subscribing witnesses.

' ALBERT SOHMITZ. Witnesses:

FRANK HESSENBURCH, WM. ESSENWEIN. 

